Tectonicists

Allan Verne Cox (December 17, 1926 – January 27, 1987) was an American geophysicist. His work on dating geomagnetic reversals, with Richard Doell and Brent Dalrymple, made a major contribution to the theory of plate tectonics. Allan Cox won numerous awards, including the prestigious Vetlesen Prize, and was the president of the American Geophysical Union. He was the author of over a hundred scientific papers, and the author or editor of two books on plate tectonics. On January 27, 1987, Cox died in an apparent suicide.

Émile Argand (6 January 1879 – 14 September 1940) was a Swiss geologist.
He was born in Eaux-Vives near Geneva. He attended vocational school in Geneva then worked as a draftsman. He studied anatomy in Paris, but gave up medicine to pursue his interest in geology.
He was an early proponent of Alfred Wegener's theory of continental drift, viewing plate tectonics and continental collisions as the best explanation for the formation of the Alps. He is also noted for his application of the theory of tectonics to the continent of Asia.
He founded the Geological Institute of Neuchâtel, Switzerland.